PDF stamp error

Here is our client’s development environment, but while they try to use stamp to PDF, it shows error as below image. Do you have any suggestion?
MS Visual Studio 2010
.net Framework版次:4.8
VB

截圖1:測試頁

Aspose01.jpg (58.2 KB)
Aspose02.jpg (53.5 KB)

@accesssoft

Could you please attach the following resources here for testing?

  • Your input PDF.
  • Please create a standalone console application (source code without compilation errors) that helps us to reproduce your problem on our end and attach it here for testing.

As soon as you get these pieces of information ready, we will start investigation into your issue and provide you more information. Thanks for your cooperation.

PS: To attach these resources, please zip and upload them.